PFObject无法正确匹配TextField字符串(解析,Swift,iOS,Xcode 7 Beta)
问题描述:
我的主要目标是让用户在TextField中输入一个zipcode,然后解析也会检查数据库,看看该zipcode是否匹配在数据库中。如果是这样,它将允许用户注册并发送println(“youre in”)。 如果不是,它会打印(“你出去”)PFObject无法正确匹配TextField字符串(解析,Swift,iOS,Xcode 7 Beta)
这是我当前的代码,以及我的Parse后端的样子。
class checkAvailability: UIViewController, UITextFieldDelegate {
@IBOutlet weak var zipCode: UITextField!
@IBAction func checkAvailBtn(sender: AnyObject) {
checkZip()
}
func checkZip() {
let usersZipCode = zipCode.text
let query = PFQuery(className:"zipCodes")
query.findObjectsInBackgroundWithBlock {
(objects: [AnyObject]?, error: NSError?) -> Void in
if error == nil {
// The find succeeded.
print("Successfully retrieved \(objects!.count) zip codes.", terminator: "")
// Do something with the found objects
if let zipCodes = objects! as? [PFObject] {
if zipCodes.contains({ $0["zipCodes"] as? String == usersZipCode }) {
print("your in!") // transition to the new screen
}
else {
print("your out.") // do whatever
}
}
} else {
// Log details of the failure
print("Error: \(error!) \(error!.userInfo)", terminator: "")
}
}
}
override func viewDidLoad() {
super.viewDidLoad()
self.zipCode.delegate=self;
}
//Allow only numbers
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
return Int(string) != nil
}
//Display Navbar
override func viewWillAppear(animated: Bool)
{
self.navigationController?.navigationBarHidden = false
}
}
答
我想通了,我的数据库中的每个条目有“;”邮政编码后。这就是为什么输入读取不正确而无法正常工作。